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Engine Controls - System & Engine Component Tests - Eec-V - Gasoline: Other Ford Mustang IV facelift

Testing & Diagnostics 3 illustrations ~17705 words

Ground Circuits

  1. Turn ignition off. Locate Powertrain Control Module (PCM). See «POWERTRAIN CONTROL MODULE LOCATION»(ref-40669-S18424886312001082200000) table. Using a DVOM, check continuity between ground and PCM connector pins. See «IDENTIFYING PCM GROUND PINS»(ref-40669-S03871983752001011200000) table. (Scheme 1)and (Scheme 2). If continuity does not exist, repair open ground circuit as necessary. If continuity exists, go to next step. POWERTRAIN CONTROL MODULE LOCATION Application Location Cougar, LS, Sable, Taurus & Windstar Right Rear Of Engine Compartment, Mounted On Cowl Continental, Escape, Ranger & Town Car Center Of Engine Compartment, Mounted On Cowl Crown Victoria & Grand Marquis Behind Left Kick Panel, Near Instrument Panel Econoline Left Rear Of Engine Compartment, Near Brake Master Cylinder Escort Center Of Instrument Panel, Below Center Console Excursion & F250/350 Super-Duty Pickups Behind Left Side Of Instrument Panel, Near Brake Pedal Expedition, Explorer, Explorer Sport, Explorer Sport Trac, F150 Pickup, Mountaineer & Navigator Right Rear Of Engine Compartment, Mounted On Cowl Focus & Mustang Behind Right Kick Panel IDENTIFYING PCM GROUND PINS Application PCM Ground Pin No. Continental, Crown Victoria, Grand Marquis & Town Car 3, 25, 51, 77 & 103 Cougar 24, 51, 77 & 103 Econoline 4.2L 24, 25, 51, 76, 77 & 103 4.6L & 5.4L 3, 24, 25, 51, 76, 77 & 103 6.8L 3, 23, 24, 25, 33, 51, 76, 77 & 103 Escape Duratec 3, 24, 25, 51, 76 &103 Zetec 23, 24, 25, 33, 51, 76, 77 &103 Escort & Escort ZX 24, 33, 51, 77 & 103 Expedition & Navigator 3, 25, 51, 76 & 103 Excursion 5.4L 3, 23, 24, 25, 51, 76, 77 & 104 6.8L 3, 23, 24, 25, 51, 76, 77 & 103 Explorer & Mountaineer 24, 25, 51, 76, 77 & 103 Focus 24, 25, 51, 77 &103 LS 24, 25, 26, 27 & 43, Mustang 3, 51, 76, 77 & 103 Pickup F150 4.2L 24, 51, 76, 77 & 103 4.6L & 5.4L 3, 51, 76, & 103 F250/F350 Super Duty 5.4L 3, 23, 24, 25, 51, 76, 77 & 104 6.8L 3, 23, 24, 25, 51, 76, 77 & 103 Ranger, Sable & Taurus 24, 25, 51, 76, 77 & 103 Windstar 24, 51, 76, 77 & 103
  2. Touch DVOM negative lead to a good ground. With vehicle running, backprobe DVOM positive lead to each ground terminal. DVOM should indicate less than one volt. If reading is greater than one volt, check for open, corrosion or loose connection on ground circuit.

Power Circuits

Turn ignition off. Using a DVOM, check for battery voltage between ground and PCM pin No. A44 (KAPWR) on LS or pin No. 55 (KAPWR) on all other models. Turn ignition switch to START or RUN position. Check for battery voltage between ground and VPWR fuse on LS or PCM connector pin No. 71 (VPWR). If battery voltage is not present, power is not being supplied from PCM power relay. See TEST B under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article.

Identifying 104-Pin PCM Connector Pins (Except LS). Scheme 1

Scheme 1: Identifying 104-Pin PCM Connector Pins (Except LS)
Scheme 1: Identifying 104-Pin PCM Connector Pins (Except LS)

Scheme 2

Scheme 2
Scheme 2

ENGINE SENSORS & SWITCHES

Note. For additional sensor testing specifications, see SENSOR OPERATING RANGE CHARTS - EXCEPT VILLAGER article.

Clutch Pedal Position Switch

See TEST TA under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article for testing procedures and specifications.

Inertia Fuel Shutoff Switch

Ensure ignition is off. Locate Inertia Fuel Shutoff (IFS) switch. See appropriate INERTIA FUEL SHUTOFF SWITCH LOCATION (CARS) or INERTIA FUEL SHUTOFF SWITCH LOCATION (TRUCKS & VANS) table. Shake or jar IFS switch to cause switch to open. IFS switch reset button should pop up. Fuel pump should not operate and car should stall. Push down on reset button. Restart engine. Fuel pump should operate.

ApplicationLocation
ContinentalBehind Left "B" Pillar
Cougar, Escort, Escort ZX & FocusBottom Of Right "A" Pillar
Crown Victoria, Grand Marquis & Town CarIn Left Side Of Luggage Compartment, Behind Lining
LSBehind Left Kick Panel
MustangIn Left Rear Of Luggage Compartment
Sable & TaurusIn Right Side Of Luggage Compartment. Behind Lining

INERTIA FUEL SHUTOFF SWITCH LOCATION (CARS)

ApplicationLocation
Econoline, Escape, Excursion, Expedition, Explorer, Mountaineer, Navigator, Pickup & RangerUnder Right Side Of Dash
RV CutawayOn Lower Right Of Steering Column
WindstarOn Right Rear Of Vehicle

INERTIA FUEL SHUTOFF SWITCH LOCATION (TRUCKS & VANS)

Park/Neutral Position Switch

See TEST TA under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article for Park/Neutral Position (PNP) switch testing procedures.

Engine Coolant Temperature Sensor

Engine Coolant Temperature (ECT) sensor uses a 5-volt reference voltage during engine operation. To check ECT signal voltage, backprobe between signal terminal and ground with engine running. To check sensor resistance, disconnect sensor connector and measure resistance between sensor terminals. For ECT sensor specifications, see ENGINE COOLANT & INTAKE AIR TEMPERATURE SENSOR SPECIFICATIONS table. For additional testing information, see TEST DA under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article.

Temperature °F (°C)(2) Volts(3) Ohms
50 (10)3.5158,750
68 (20)3.0727,300
86 (30)2.6024,270
104 (40)2.1316,150
122 (50)1.7010,970
140 (60)1.337700
158 (70)1.025370
176 (80)0.783840
194 (90)0.602800
212 (100)0.462070
230 (110)0.351550
248 (120)0.271180
(1) Values may differ by as much as 15 percent. (2) Backprobe between signal terminal and ground with engine running. (3) Measure resistance between sensor terminals.
(1)Values may differ by as much as 15 percent.
(2)Backprobe between signal terminal and ground with engine running.
(3)Measure resistance between sensor terminals.

ENGINE COOLANT & INTAKE AIR TEMPERATURE SENSOR SPECIFICATIONS (1)

Heated Oxygen Sensor

Faults in Heated Oxygen Sensor (HO2S) or circuit should set a Diagnostic Trouble Code (DTC). See QUICK TEST in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. To check HO2S heater resistance, go to step 34) of TEST H under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article.

Intake Air Temperature Sensor

Note. On some models, IAT sensor is part of Mass Airflow (MAF) sensor assembly. If all 6 terminals of MAF sensor connector are being used, IAT sensor is integral to MAF sensor. See WIRING DIAGRAMS article.

Intake Air Temperature (IAT) sensor uses a 5-volt reference voltage during engine operation. To check IAT signal voltage, backprobe between signal terminal and ground with engine running. To check sensor resistance, disconnect sensor and measure resistance between sensor terminals. For specifications, see ENGINE COOLANT & INTAKE AIR TEMPERATURE SENSOR SPECIFICATIONS table. For additional testing information, see TEST DA under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article.

Mass Airflow Sensor

Faults in Mass Airflow (MAF) sensor or circuit should set a Diagnostic Trouble Code (DTC). See QUICK TEST in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. If no DTC has been set, go to TEST DC under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article for MAF sensor and circuit testing.

Output Shaft Speed Sensor

Faults in Output Shaft Speed (OSS) sensor or circuit should set a Diagnostic Trouble Code (DTC). See QUICK TEST in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. If no DTC code has been set, go to TEST TJ under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article for OSS sensor and circuit testing.

Throttle Position Sensor

Ensure none of following conditions exist

  1. Binding throttle linkage.
  2. Throttle Position (TP) sensor loose or not seated properly.
  3. Throttle plate not fully closed.

Faults in TP sensor or TP sensor circuits should set a Diagnostic Trouble Code (DTC). See QUICK TEST in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. If no DTCs are present, see TEST DH under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article for additional TP sensor testing and specifications.

RELAYS

Note. To identify fuel pump relay terminals, refer to numbers molded on relay. Two different numbered relays are used. Fuel pump relay terminals may be numbered 1-5 or terminals may be numbered 30, 85, 86, 87 and 87A. On relays that are numbered 1-5, terminals for relay coil are terminals No. 1 and 2. On relays that are numbered 30, 85, 86, 87 and 87A, terminals for relay coil are terminals No. 85 and 86.

Fuel Pump Relay

  1. Turn ignition off. On fuel pump relays that terminals are numbered 1-5, measure resistance between relay terminal No. 1 and all other relay terminals. Resistance should be 40-120 ohms between terminals No. 1 and 2 and greater than 10,000 ohms between terminal No. 1 and other relay terminals.
  2. On fuel pump relays that terminals are numbered 30, 85, 86, 87 and 87A, measure resistance between relay terminal No. 85 and all other relay terminals. Resistance should be 40-120 ohms between terminals No. 85 and 86 and greater than 10,000 ohms between terminal No. 85 and other relay terminals. On both relays, if resistance is not as specified, replace relay. If resistance is okay, see TEST KA under SYSTEM TEST in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article for additional fuel pump circuit testing procedures.

Fuel Shutoff Valve Relay

Note. To identify Fuel Shutoff Valve (FSV) relay terminals, refer to numbers molded on relay. FSV relay is also referred to as fuel valve relay.

  1. Faults in fuel shutoff valve relay or circuits should set a Diagnostic Trouble Code (DTC). See QUICK TEST in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. If no DTCs are present, see TEST KC under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article.

Air Injection By-Pass Solenoid

See SECONDARY AIR INJECTION under EMISSION SYSTEMS & SUB-SYSTEMS.

Air Injection Diverter Solenoid

See SECONDARY AIR INJECTION under EMISSION SYSTEMS & SUB-SYSTEMS.

Canister Vent Solenoid

See FUEL EVAPORATION under EMISSION SYSTEMS & SUB-SYSTEMS.

EGR Vacuum Regulator Solenoid

See EGR under EMISSION SYSTEMS & SUB-SYSTEMS.

Fuel Rail Solenoid

See TEST DD under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article for additional testing and specifications.

Idle Air Control Solenoid Resistance

See IDLE AIR CONTROL SOLENOID under IDLE CONTROL SYSTEM.

Intake Manifold Tuning Valve Vacuum Solenoid

See TEST HU under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article for additional testing and specifications.

Supercharger (Boost) By-Pass Solenoid

Turn ignition off. Disconnect Supercharger By-Pass (SCB) solenoid connector. Measure resistance between SCB solenoid terminals. If resistance is not 68-78 ohms, replace solenoid. If resistance is 68-78 ohms, IAC solenoid is okay. See TEST KJ under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article for additional testing and specifications.

Variable Cam Timing Solenoid

See TEST HK under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article for additional testing and specifications.

With Fuel Pressure Gauge

Remove fuel tank cap to release fuel tank pressure. Connect Fuel Pressure Gauge (T80L-9974-B) to pressure relief valve (Schrader valve) located on fuel injection manifold rail. Using a suitable container, release fuel pressure.

Without Fuel Pressure Gauge

If fuel pressure gauge is not available, disconnect Inertia Fuel Shutoff (IFS) switch. For IFS location, see INERTIA FUEL SHUTOFF SWITCH LOCATION (CARS) or INERTIA FUEL SHUTOFF SWITCH LOCATION (TRUCKS & VANS) under ENGINE SENSORS & SWITCHES. Remove fuel cap to release fuel tank pressure. Crank engine for 15 seconds to release system pressure.

See RELAYS under RELAYS & SOLENOIDS.

System Integrity Check

CAUTIONInspect fuel system for leaks and damage before testing fuel pump.

Perform the following checks

  1. Visually inspect fuel system (fuel lines, filter, pump, injectors, pressure regulator, etc.).
  2. Ensure Inertia Fuel Shutoff (IFS) switch reset button is not in the up (tripped) position.
  3. Ensure battery is fully charged and fuel-related fuses are okay.
  4. Check fuel tank contents and fuel gauge accuracy. On vehicles with 2 fuel tanks, check both tanks. If any fault is detected, repair as necessary. If system checks are okay, go to «FUEL PRESSURE CHECK»(ref-40669-S40687509832001011200000) .

Fuel Pressure Check

Install fuel pressure gauge. Start engine and record fuel pressure. See FUEL PRESSURE SPECIFICATIONS table. If fuel pressure is as specified, testing is complete. If fuel pressure is not as specified, go to TEST HC under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article.

ApplicationPsi (kPa)
Continental, Cougar, Escape, Escort, Escort ZX, Focus, LS, Mustang, Sable & Taurus35-65 (240-448)
Crown Victoria, Grand Marquis & Town Car30-45 (207-310)
Econoline, Expedition, Excursion, Navigator, Pickup, Ranger 2.3L & Windstar35-55 (240-380)
Explorer, Mountaineer & Ranger 2.5L/3.0L30-65 (207-448)

FUEL PRESSURE SPECIFICATIONS

FUEL PRESSURE REGULATOR

See TEST HC under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article.

Fuel Injector Resistance

Disconnect injector harness connectors. Using a DVOM, measure resistance between injector terminals. See FUEL INJECTOR RESISTANCE . If resistance of any injector is not as specified, replace injector.

ApplicationOhms
Continental11.0-18.0
Cougar
Except HO13.8-15.2
HO11.0-18.0
Crown Victoria, Grand Marquis & Town Car11.0-18.0
Econoline & Pickup
4.2L8.5-15.5
4.6L, 5.4L & 6.8L11.0-18.0
Escape
2.0L11.4-12.6
3.0L10.3-17.3
Escort & Escort ZX13.8-15.2
Excursion, Expedition & Navigator11.0-18.0
Explorer & Mountaineer11.0-18.0
Focus
2-Valve13.8-15.2
4-Valve11.4-12.6
LS
3.0L11.0-18.0
3.9L8.5-15.5
Mustang
3.8L8.5-15.5
4.6L11.0-18.0
Ranger
2.3L11.0-13.0
2.5L11.0-18.0
3.0L8.5-15.5
Sable & Taurus
2-Valve8.5-15.5
4-Valve10.3-17.3
Windstar8.5-15.5

FUEL INJECTOR RESISTANCE

Fuel Injector Check

Start engine and allow to idle. If engine will not start, crank engine for 10 seconds. Using a stethoscope, listen for clicking sound at each injector. If clicking sound is heard, fuel injector is operating. If clicking sound is not heard, go to step 57) of TEST H under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article.

IDLE AIR CONTROL SOLENOID

Idle Air Control (IAC) solenoid is by-pass air type. Ensure ignition is off. Disconnect IAC solenoid harness connector. Measure resistance between IAC solenoid connector terminals. Solenoid has diode and resistance will be infinite if voltmeter is hooked up wrong. If resistance is not 6-13 ohms, replace solenoid. If resistance is 6-13 ohms, IAC solenoid is okay. See TEST KE under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article for additional testing and specifications.

IGNITION SYSTEMS

Note. For additional information and descriptions, see IGNITION SYSTEMS in appropriate THEORY & OPERATION - ECC-V article

Faults in ignition system may set a Diagnostic Trouble Code (DTC). See QUICK TEST in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. If any DTCs are present, perform appropriate system test. If no DTCs are present, check secondary ignition system. See TEST JB under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article.

EXHAUST CATALYST

  1. Disable secondary air injection system. Run engine at 2500 RPM for 2 minutes. Turn ignition off. Disconnect and ground one spark plug wire or disconnect one ignition coil for coil on plug applications.
  2. Start and operate engine at 1000 RPM. Disconnect IAC valve. Using an infrared temperature probe, measure surface temperature at catalytic converter inlet and outlet. Outlet temperature should be at least 50°F (28°C) greater than inlet temperature. Replace catalytic converter, if necessary. Reconnect ignition system, IAC valve and secondary air injection.

FUEL EVAPORATION

Note. For testing of EVAP emission system and/or EVAP component not found here, perform appropriate symptom test under SYSTEM TESTS (EVAPORATIVE EMISSION) , or appropriate DTC-related testing in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article.

Turn ignition off. Disconnect Canister Vent (CV) solenoid wiring harness connector. Measure resistance between CV solenoid terminals. If resistance is not 48-65 ohms, replace CV solenoid and repeat QUICK TEST. If resistance is 48-65 ohms, solenoid is okay. If fault is still present, perform TEST HX in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article.

EVAP Canister (All Models)

There are no moving parts in canister. Check for loose, missing, cracked or broken connections and parts. Repair or replace canister as necessary. There should be no liquid in canister.

SECONDARY AIR INJECTION

Faults in Secondary Air Injection (AIR) system should set a Diagnostic Trouble Code (DTC). See QUICK TEST in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. If any DTCs are present, perform appropriate system test. If no DTCs are present, check AIR system. See TEST HM under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article.

EGR

Faults in Secondary Air Injection (AIR) system should set a Diagnostic Trouble Code (DTC). See QUICK TEST in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. If any DTCs are present, perform appropriate system test. If no DTCs are present, check AIR system. See TEST HM under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article.

EGR Valve

  1. Ensure all vacuum hoses are correctly routed and securely attached. Replace any crimped or broken hoses. Ensure there is less than one in. Hg vacuum to EGR valve at idle with engine at normal operating temperature.
  2. Install tachometer. Disconnect Idle Air Control (IAC) wiring harness connector. Remove and plug vacuum hose at EGR valve. Place transmission in Neutral. Start and operate engine at idle. Note idle speed. Using a hand-held vacuum pump, slowly apply 5-10 in. Hg vacuum to EGR valve. When vacuum is fully applied, engine should do one or more of the following: Engine should stall. Idle speed should drop more than 100 RPM. Idle speed should return to normal when vacuum is released.
  3. Service or replace EGR valve if engine does not stall or idle speed does not respond as specified. Reconnect IAC harness connector. Unplug and reconnect vacuum hose at EGR valve. For additional EGR system testing, go to TEST HE under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article.

Turn ignition off. Disconnect EGR Vacuum Regulator (EVR) solenoid wiring harness connector. Measure resistance between EVR solenoid terminals. If resistance is not 26-40 ohms, replace EVR solenoid. For additional EGR system testing, go to TEST HE under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article.

POSITIVE CRANKCASE VENTILATION

  1. Check PCV Valve Remove PCV valve. Shake valve and listen for rattle. If PCV valve rattles when shaken, go to next step. Replace PCV valve if it does not rattle when shaken.
  2. Check PCV System Start engine and warm to normal operating temperature. Disconnect hose from remote air cleaner or outlet tube. Place a stiff piece of paper over end of hose. If vacuum from hose does not hold paper in place for one minute, repair clogged or leaking hose as necessary. If vacuum from hose holds paper in place for one minute, PCV system is okay and testing is complete.

SYSTEM TESTS (EVAPORATIVE EMISSION)

Note. For DTC-related procedures, see SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article.

Note. Evaporative emission diagnostic procedures for 2001 Cougar are not available from manufacturer.

HISSING SOUND WHEN REMOVING FUEL CAP

Note. After each service or repair procedure has been completed, reconnect all components and perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. Clear DTCs and repeat QUICK TEST procedures to ensure all EEC-V systems are working properly and DTCs are no longer present.

Note. Enter this test only when all steps under QUICK TEST have been successfully completed and hiss still exists when fuel cap is opened or if directed here from another test or chart.

Continental

  1. Testing EVAP Canister & Canister Vent Solenoid Flow - Connect Evaporative Emissions System Leak Tester (134-00056) to test port. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, go to step 8 . If pressure does not drop immediately, go to next step.
  2. Testing Canister Vent Solenoid Remote Vent Hose Assembly For Blockage Disconnect canister vent solenoid hose from solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid remote vent hose. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If pressure does not drop immediately, go to next step.
  3. Testing Canister Vent Solenoid Hose Assembly For Blockage Disconnect canister vent solenoid hose assembly. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid hose assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If pressure does not drop immediately, go to next step.
  4. Testing Canister Vent Solenoid Elbow For Blockage Remove canister vent solenoid elbow. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid elbow. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  5. Testing EVAP Canister Disconnect EVAP canister tube at canister that runs from EVAP canister to fuel tank. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister. Perform evaporative emissions system leak test. See EVAPORATIVE EMISSIONS SYSTEM LEAK TEST. If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  6. Testing EVAP Canister Tube Disconnect EVAP canister tube at fuel vapor valve tube assembly that runs from EVAP canister to fuel tank. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister tube. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  7. Testing EVAP Canister Purge Outlet Tube Disconnect EVAP canister purge outlet tube at fuel vapor valve tube assembly that runs from EVAP purge valve to fuel tank. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, go to step 9 . If pressure does not drop immediately, go to next step.
  8. Testing Evaporative Emissions Test Port Disconnect evaporative emissions test port from EVAP canister purge outlet tube. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister purge outlet tube. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace evaporative emissions test port. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  9. Testing Fuel Vapor Valve Tube Assembly Disconnect EVAP canister purge outlet tube at fuel vapor valve tube assembly. Connect EVAP tester to fuel filler tube. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace fuel vapor valve tube assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.

Crown Victoria, Grand Marquis & Town Car

  1. Testing EVAP Canister & Canister Vent Solenoid Flow - Connect Evaporative Emissions System Leak Tester (134-00056) to test port. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, EVAP canister and vent solenoid are not blocked, go to step 9 . If pressure does not drop immediately, go to next step.
  2. Testing Canister Vent Solenoid Remote Vent Hose Assembly For Blockage Disconnect canister vent solenoid remote vent hose from in-line connector. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid remote vent hose. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If pressure does not drop immediately, go to next step.
  3. Testing Canister Vent Solenoid Hose Assembly For Blockage Disconnect canister vent solenoid hose assembly. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid hose assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If pressure does not drop immediately, go to next step.
  4. Testing Canister Vent Solenoid For Blockage Remove canister vent solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  5. Testing EVAP Canister Disconnect EVAP canister tube at canister that runs from EVAP canister to fuel tank. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  6. Testing EVAP Canister Tube Disconnect EVAP canister tube at fuel vapor valve tube assembly that runs from EVAP canister to fuel tank. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister tube. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  7. Testing EVAP Canister Purge Outlet Tube Disconnect EVAP canister purge outlet tube at fuel vapor valve tube assembly that runs from EVAP purge valve to fuel tank. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, go to step 9 . If pressure does not drop immediately, go to next step.
  8. Testing Evaporative Emissions Test Port Disconnect evaporative emissions test port from EVAP canister purge outlet tube. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister purge outlet tube. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace evaporative emissions test port. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  9. Testing Fuel Vapor Valve Tube Assembly Disconnect EVAP canister purge outlet tube at fuel vapor valve tube assembly. Connect EVAP tester to fuel filler tube. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace fuel vapor valve tube assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.

Escort, Escort ZX & Focus

  1. Testing EVAP Canister & Canister Vent Solenoid Flow - Connect Evaporative Emissions System Leak Tester (134-00056) to test port. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, EVAP canister and vent solenoid are not blocked, go to step 5 . If pressure does not drop immediately, go to next step.
  2. Testing Canister Vent Solenoid Hose Assembly Disconnect canister vent solenoid hose assembly. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid hose assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  3. Testing Canister Vent Solenoid For Blockage Remove canister vent solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  4. Testing EVAP Canister Disconnect EVAP canister tube at canister. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace EVAP canister outlet tube. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  5. Testing Fuel Vapor Control Valve Tube Assembly (With ORVR Only) Disconnect fuel vapor valve from fuel vapor control valve tube. Plug hose on fuel vapor valve assembly and at fuel vapor control valve tube assembly. Move EVAP tester to fuel filler pipe. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed and go to next step. If pressure does not drop immediately, replace fuel vapor control valve tube assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  6. Testing Fuel Vapor Valve Assembly Disconnect fuel vapor valve tube assembly at EVAP canister tube "T" fitting connector and at fuel vapor valve. Plug both open ports at tube assembly. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace fuel vapor valve assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.

Econoline, Escape, Excursion, Expedition, Explorer, F250/350 Super Duty Pickup, Mountaineer, Navigator, Ranger & Windstar

  1. Testing EVAP Canister, Canister Vent Solenoid Flow & Canister Vent Hose - Connect Evaporative Emissions System Leak Tester (134-00056) to fuel filler pipe. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, EVAP system is not blocked, go to step 6 . On models equipped with a canister vent hose assembly, if pressure does not drop immediately, go to next step. On models equipped with canister vent solenoid, if pressure does not drop immediately, go to step 3 . On all other models, if pressure does not drop immediately, go to step 4 .
  2. Testing Canister Vent Hose Assembly For Blockage Disconnect canister vent hose assembly from EVAP canister. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure does not drop immediately, go to next step. If pressure drops immediately, replace canister vent solenoid hose assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  3. Testing Canister Vent Solenoid For Blockage Remove canister vent solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure does not drop immediately, go to next step. If pressure drops immediately, replace canister vent solenoid. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  4. Testing EVAP Canister Disconnect EVAP canister tube from fuel tank at "F" fitting from EVAP canister. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure does not drop immediately, go to next step. If pressure drops immediately, replace EVAP canister. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  5. Testing EVAP Canister Tube Or Fuel Vapor Vent Valve For Blockage Disconnect fuel vapor valve assembly from EVAP canister tube. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister tube and/or fuel vapor valve tube between fuel tank and EVAP canister and bracket assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace fuel vapor valve(s) or assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  6. Testing For Blockage Between EVAP Canister Purge Valve & Fuel Tank Remove fuel tank fuel vapor hose from EVAP canister purge valve. Turn ignition on. On models with a canister vent solenoid, using scan tool, close canister vent solenoid. Select OUTPUT TEST MODE, FTP and FTP V PID. Select ALL OFF mode. Press START button on scan tool to close canister vent solenoid. On models without canister vent solenoid, plug canister vent hose assembly or plug canister vent cap. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure does not drop immediately, replace fuel vapor hose. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure drops immediately, system has passed. Reconnect all components. On models with a canister vent solenoid, perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. On models without canister vent solenoid, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.

F150 Pickup

  1. Testing EVAP Canister And Canister Vent Solenoid Flow - Connect Evaporative Emissions System Leak Tester (134-00056) to fuel filler pipe. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, EVAP system is not blocked, go to step 5 . If pressure does not drop immediately, go to next step.
  2. Testing Canister Vent Hose Assembly For Blockage Disconnect canister vent hose assembly from EVAP canister. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure does not drop immediately, go to next step. If pressure drops immediately, replace canister vent solenoid hose assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  3. Testing Canister Vent Solenoid For Blockage Remove canister vent solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure does not drop immediately, go to next step. If pressure drops immediately, replace canister vent solenoid. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  4. Testing EVAP Canister For Blockage Disconnect EVAP purge outlet tube from EVAP canister. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure does not drop immediately, go to next step. If pressure drops immediately, replace EVAP canister. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  5. Testing EVAP Fuel Vapor Vent Valve(s) Or Assembly Disconnect battery ground terminal. Connect leak tester to fuel filler pipe. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, reconnect all disconnect components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If pressure does not drop immediately, replace fuel vapor vent valve(s) or EVAP canister assembly. After repairs, perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.

Scheme 3

Scheme 3: LS
Scheme 3: LS
  1. Testing Fuel Tank Pressure Sensor - Connect Evaporative Emissions System Leak Tester (134-00056) to fuel filler pipe. Turn ignition on. Using scan tool, close canister vent solenoid. Select OUTPUT TEST MODE, FTP and FTP V PID. Select ALL OFF mode. Press START button on scan tool to close canister vent solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). If FTP V PID is not 4.22-4.90 volts, go to step 3. If FTP V PID is 4.22-4.90 volts, go to next step.
  2. Testing Venting Portion Of EVAP System For Blockage Using scan tool, open canister vent solenoid. If pressure drops immediately, perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to step 5.
  3. Testing For Fuel Filler Pipe Blockage Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, go to next step. If pressure does not drop immediately, replace fuel filler pipe. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  4. Testing Fuel Vapor Control Valve Tube For Pinch Or Blockage Reconnect fuel filler pipe to fuel tank. Lower fuel tank about 3/4" (19 mm). Connect EVAP tester to fuel filler pipe. Turn ignition on. Using scan tool, close canister vent solenoid. Select OUTPUT TEST MODE, FTP and FTP V PID. Select ALL OFF mode. Press START button on scan tool to close canister vent solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). If FTP V PID is 4.22-4.90 volts, fuel vapor control tube is pinched, replace fuel tank assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If FTP V PID is not 4.22-4.90 volts, fuel vapor control valve tube or fuel tank vapor control valve is blocked, replace fuel tank assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  5. Isolate Location Of Blockage Disconnect fuel vapor control valve tube from EVAP canister purge outlet tube. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, go to next step. If pressure does not drop immediately, replace fuel tank assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  6. Testing EVAP Canister Vent Solenoid For Blockage Reconnect fuel vapor control valve tube from EVAP canister purge outlet tube. Lower differential to access canister vent solenoid. See appropriate DIFFERENTIALS article in DRIVE AXLES. Disconnect canister vent solenoid from canister vent hose. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure does not drop immediately, go to next step. If pressure drops immediately, replace canister vent solenoid. Reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  7. Testing Canister Vent Solenoid Hose Assembly For Blockage Reinstall differential. Lower rear subframe to access EVAP canister and bracket assembly. Lower EVAP canister and bracket assembly. Disconnect canister vent solenoid hose from 1.0L EVAP canister. (Scheme 3) Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid hose assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  8. Testing 1.0L EVAP Canister Disconnect fuel vapor storage EVAP canister inlet tube at 1.0L EVAP canister. (Scheme 3) Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace 1.0L EVAP canister. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  9. Testing Fuel Vapor Storage Canister Inlet Tube Disconnect fuel vapor storage canister inlet tube from 2.0L EVAP canister. (Scheme 3) Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace fuel vapor storage canister inlet tube. Reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  10. Testing 2.0L EVAP Canister Disconnect EVAP canister purge outlet tube at 2.0L EVAP canister. (Scheme 3) Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace 2.0L EVAP canister. Reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace EVAP canister purge outlet tube. Reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.

Mustang

  1. Testing Fuel Tank Pressure Sensor - Connect Evaporative Emissions System Leak Tester (134-00056) to fuel filler pipe. Turn ignition on. Using scan tool, close canister vent solenoid. Select OUTPUT TEST MODE, FTP and FTP V PID. Select ALL OFF mode. Press START button on scan tool to close canister vent solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). If FTP V PID is 4.22-4.90 volts, go to next step. If FTP V PID is not 4.22-4.90 volts, go to step 3 .
  2. Testing Venting Portion Of EVAP System For Blockage Using scan tool, open canister vent solenoid by selecting STOP button. If pressure drops immediately, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to step 7 .
  3. Testing Fuel Tank Pressure Sensor Operation Move EVAP tester to evaporative emission test port. Turn ignition on. Using scan tool, close canister vent solenoid. Select OUTPUT TEST MODE, FTP and FTP V PID. Select ALL OFF mode. Press START button on scan tool to close canister vent solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). If FTP V PID is 4.22-4.90 volts, go to next step. If FTP V PID is not 4.22-4.90 volts, go to TEST HX under SYSTEM TESTS.
  4. Testing For Location Of Blockage Using scan tool, open canister vent solenoid by selecting STOP button. If pressure drops immediately, go to next step. If pressure does not drop immediately, go to step 7 .
  5. Testing For Pinched Or Blocked Fuel Vapor Control Valve Tube Lower fuel tank about 3/4" (19 mm). Connect EVAP tester to fuel filler pipe. Turn ignition on. Using scan tool, close canister vent solenoid. Select OUTPUT TEST MODE, FTP and FTP V PID. Select ALL OFF mode. Press START button on scan tool to close canister vent solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). If FTP V PID is 4.22-4.90 volts, replace fuel vapor control tube assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If FTP V PID is not 4.22-4.90 volts, go to next step.
  6. Testing Fuel Filler Tube Assembly Disconnect tank vapor recirculation hose at fuel filler pipe and plug both openings. Pressurize system to 14 in. H 2 O (3.48 kPa). Remove plug from tank vapor recirculation hose. If pressure drops immediately, replace fuel vapor control valve tube assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace fuel filler pipe assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  7. Testing Fresh Air Vent Hose Disconnect fresh air vent hose from inside trunk. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace fresh air vent hose. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  8. Testing Fresh Air Vent Hose At Fuel Filler Pipe Disconnect fresh air vent hose at fuel filler pipe. Pressurize system to 14 in. H 2 OH 2 O (3.48 kPa). If pressure drops immediately, replace fuel filler pipe. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  9. Testing Tank Vapor Valve Assembly Disconnect tank vapor valve assembly fresh air tube from canister vent solenoid vent hose. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace tank vapor valve assembly fresh air tube. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  10. Testing Canister Vent Solenoid Hose Assembly For Blockage Disconnect canister vent solenoid hose assembly. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid hose assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  11. Testing Canister Vent Solenoid For Blockage Remove canister vent solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  12. Testing EVAP Canister Disconnect EVAP canister inlet elbow tube. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  13. Testing EVAP Canister Inlet Elbow Tube Disconnect fuel vapor valve tube assembly from EVAP canister inlet elbow tube. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister inlet elbow tube. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace fuel vapor valve tube assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.

Sable & Taurus

  1. Testing EVAP Canister & Canister Vent Solenoid Flow - Connect Evaporative Emissions System Leak Tester (134-00056) to test port. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, EVAP canister and vent solenoid are not blocked, go to step 8 . If pressure does not drop immediately, go to next step.
  2. Testing Canister Vent Solenoid Hose Assembly For Blockage Disconnect canister vent solenoid hose assembly. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid hose assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If pressure does not drop immediately, go to next step.
  3. Testing Canister Vent Solenoid For Blockage Remove canister vent solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  4. Testing EVAP Canister Disconnect EVAP canister tube at canister that runs from EVAP canister to fuel tank. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  5. Testing EVAP Canister Tube Disconnect EVAP canister tube at fuel vapor valve tube assembly that runs from EVAP canister to fuel tank. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister tube. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  6. Testing EVAP Canister Purge Outlet Tube Disconnect EVAP canister purge outlet tube at fuel vapor valve tube assembly that runs from EVAP purge valve to fuel tank. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, go to step 8 . If pressure does not drop immediately, go to next step.
  7. Testing Evaporative Emissions Test Port Disconnect evaporative emissions test port from EVAP canister purge outlet tube. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister purge outlet tube. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace evaporative emissions test port. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  8. Testing Fuel Vapor Valve Tube Assembly Disconnect EVAP canister purge outlet tube at fuel vapor valve tube assembly. Connect EVAP tester to fuel filler tube. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace fuel vapor valve tube assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.

EXCESSIVE FUEL ODOR

Note. After each service or repair procedure has been completed, reconnect all components and perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. Clear DTCs and repeat QUICK TEST procedures to ensure all EEC-V systems are working properly and DTCs are no longer present.

Note. Enter this test only when all steps under QUICK TEST have been successfully completed and when excessive fuel odor still exists or if directed here from another test or chart.

Continental, Escort, Escort ZX, Focus, Crown Victoria, Grand Marquis, Sable, Taurus & Town Car

  1. Testing Evaporative Emission Running Loss System Monitor - Perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If PCM DTC P0442, P0455, P1443 or P1450 is retrieved, see DIAGNOSTIC TROUBLE CODE REFERENCE table under SYSTEM TESTS (EVAPORATIVE EMISSIONS) in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article for appropriate test procedure. If any other PCM DTC(s) are retrieved, diagnose affected DTC(s). See SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. If no PCM DTC(s) are retrieved, go to next step.
  2. Testing Evaporative Emissions Test Port Through Canister Vent Solenoid Connect Evaporative Emissions System Leak Tester (134-00056) to test port. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, go to next step. If pressure does not drop immediately, go to «HISSING SOUND WHEN REMOVING FUEL CAP»(ref-40669-S19215374742001011100000) .
  3. Testing EVAP System Between Fuel Filler Pipe & Canister Vent Solenoid Move EVAP tester to fuel filler pipe. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. On Escort, Escort ZX and Focus, if pressure does not drop immediately, go to «HISSING SOUND WHEN REMOVING FUEL CAP»(ref-40669-S19215374742001011100000) . On all other models, if pressure does not drop immediately, replace fuel vapor valve tube assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.

Econoline, Escape, Expedition, Excursion, Explorer, F250/350 Super Duty Pickup, Mountaineer, Navigator, Ranger & Windstar

  1. Testing Evaporative Emission Running Loss System Monitor - Perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If PCM DTCs P0442, P0455, P1443 or P1450 are retrieved, see DIAGNOSTIC TROUBLE CODE REFERENCE table under SYSTEM TESTS (EVAPORATIVE EMISSIONS) in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article for appropriate test procedure. If any other PCM DTCs are retrieved, diagnose affected DTC(s). See SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. If no PCM DTCs are retrieved, go to next step.
  2. Testing For Restriction In EVAP Test Port Through Canister Vent Solenoid Connect Evaporative Emissions System Leak Tester (134-00056) to test port. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to «TEST D»(ref-40669-S19215374742001011100000) .
  3. Testing For Restriction Between Fuel Tank & EVAP Canister Move EVAP tester to fuel filler pipe. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  4. Testing EVAP Canister Tube Or Fuel Vapor Vent Valve Blockage Disconnect fuel vapor vent valve from EVAP canister tube. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace fuel vapor tubes between fuel tank and EVAP canister and/or EVAP canister tube. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace fuel vapor vent valve. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  1. Testing Evaporative Emission Running Loss System Monitor - Perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If PCM DTCs P0442, P0455, P1443 or P1450 are retrieved, see EVAPORATIVE EMISSIONS DIAGNOSTIC TROUBLE CODE REFERENCE table under SYSTEM TESTS (EVAPORATIVE EMISSIONS) in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article for appropriate test procedure. If any other PCM DTCs are retrieved, diagnose affected DTC(s). See SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. If no PCM DTCs are retrieved, go to next step.
  2. Testing For Restriction In EVAP Test Port Through Canister Vent Solenoid Connect Evaporative Emissions System Leak Tester (134-00056) to test port. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, go to next step. If pressure does not drop immediately, go to «HISSING SOUND WHEN REMOVING FUEL CAP»(ref-40669-S19215374742001011100000) .
  3. Testing For Restricted EVAP System Between Fuel Filler Pipe And Canister Vent Solenoid Connect leak tester to fuel filler pipe. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace fuel vapor vent valve. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  1. Testing Evaporative Emission Running Loss System Monitor - Perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If PCM DTCs P0442, P0455, P1443 or P1450 are retrieved, see DIAGNOSTIC TROUBLE CODE REFERENCE table under SYSTEM TESTS (EVAPORATIVE EMISSIONS) in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. If any other PCM DTCs are retrieved, diagnose affected DTC(s). See SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. If no PCM DTCs are retrieved, go to next step.
  2. Evaporative Emission System Leak Test Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, go to next step. If system does not pass, go to step 9.
  3. Testing Fuel Tank Pressure Sensor Operation Connect Evaporative Emissions System Leak Tester (134-00056) to fuel filler pipe. Turn ignition on. Using scan tool, close canister vent solenoid. Select OUTPUT TEST MODE, FTP and FTP V PID. Select ALL OFF mode. Press START button on scan tool to close canister vent solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). If FTP V PID is 4.22-4.90 volts, go to next step. If FTP V PID is not 4.22-4.90 volts, go to «TEST D»(ref-40669-S19215374742001011100000).
  4. Testing Vent Portion Of EVAP System Using scan tool, open canister vent solenoid. If pressure drops immediately, go to next step. If pressure does not drop immediately, go to «TEST D»(ref-40669-S19215374742001011100000).
  5. Testing Evaporative Emissions Test Port Move EVAP tester to test port. Using scan tool, close canister vent solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). If FTP V PID is 4.22-4.90 volts, evaporative emission system is operating normally. If FTP V PID is not 4.22-4.90 volts, go to next step.
  6. Testing Fuel Vapor Control Valve Tube Disconnect fuel vapor control valve tube from under vehicle fuel supply and vapor tube assembly. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace fuel tank assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  7. Testing Under Vehicle Fuel Supply & Vapor Tube Assembly Disconnect under vehicle fuel supply and vapor tube assembly from engine compartment fuel supply and vapor tube. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace under vehicle fuel supply and vapor tube assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  8. Testing Engine Compartment Fuel Supply & Vapor Tube Assembly Disconnect engine compartment fuel supply and vapor tube assembly from canister purge valve. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace engine compartment fuel supply and vapor tube assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace EVAP canister purge valve. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  9. Testing For Location Of Leak Connect EVAP tester to fuel filler pipe. Disconnect fuel vapor control valve tube from under vehicle fuel supply and vapor tube assembly. Plug both tube open ends. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, leaks are in front portion of EVAP system, go to next step. If system does not pass, leaks are in rear portion of EVAP system, go to step 14.
  10. Testing To Confirm Leak In Front Portion Of EVAP System Move EVAP tester to test port. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system does not pass, go to next step. If system passes, replace "O" ring seals between fuel vapor control valve tube and under vehicle fuel supply and vapor tube assembly. Reconnect all components. Perform evaporative emissions system leak test. If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  11. Testing Under Vehicle Fuel Supply & Vapor Tube Assembly Disconnect under vehicle fuel supply and vapor tube assembly from engine compartment fuel supply and vapor tube assembly. Plug engine compartment fuel supply and vapor tube assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system did not pass, go to next step. If system passes, replace under vehicle fuel supply and vapor tube assembly. Reconnect all components. Perform evaporative emissions system leak test. If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  12. Testing Engine Compartment Fuel Supply & Vapor Tube Assembly Disconnect engine compartment fuel supply and vapor tube assembly from canister purge valve. Plug EVAP canister purge valve. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system did not pass, go to next step. If system passes, replace engine compartment fuel supply and vapor tube assembly. Reconnect all components. Perform evaporative emissions system leak test. If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  13. Testing EVAP Canister Purge Valve Disconnect evaporative emission return tube from EVAP canister purge valve. Plug EVAP canister purge valve. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, replace evaporative emission return tube. Reconnect all components. Perform evaporative emissions system leak test. If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If system did not pass, replace EVAP canister purge valve. Reconnect all components. Perform evaporative emissions system leak test. If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  14. Testing To Determine Is In EVAP Canister Or Fuel Tank Portion Of System Disconnect fuel vapor control valve tube from EVAP canister purge outlet tube. Plug open end of fuel vapor control valve tube. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, reconnect all components and go to next step. If system does not pass, go to step 20.
  15. Testing EVAP Canister Vent Solenoid Reconnect fuel vapor control valve tube. Lower differential to gain access to canister vent solenoid. See appropriate DIFFERENTIALS article in DRIVE AXLES. Disconnect canister vent solenoid from canister vent hose. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system does not pass, go to next step. If system passes, replace canister vent solenoid. Reconnect all components. Perform evaporative emissions system leak test. If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  16. Testing Canister Vent Solenoid Hose Assembly Reinstall differential. Lower rear subframe to access EVAP canister and bracket assembly. Remove EVAP canister and bracket assembly. Move EVAP tester to EVAP canister purge outlet tube. (Scheme 3) Disconnect canister vent solenoid hose from 1.0L EVAP canister. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure holds, replace canister vent solenoid hose assembly. Reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not hold, go to next step.
  17. Testing 1.0L EVAP Canister Disconnect fuel vapor storage EVAP canister inlet tube at 1.0L EVAP canister and plug inlet tube. (Scheme 3) Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure holds, replace 1.0L EVAP canister. Reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not hold, go to next step.
  18. Testing Fuel Vapor Storage Canister Inlet Tube Disconnect fuel vapor storage canister inlet tube from 2.0L EVAP canister and plug EVAP canister. (Scheme 3) Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure holds, replace fuel vapor storage canister inlet tube. Reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not hold, go to next step.
  19. Testing 2.0L EVAP Canister Disconnect EVAP canister purge outlet tube at 2.0L EVAP canister and plug outlet tube. (Scheme 3) Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure holds, replace 2.0L EVAP canister. Reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not hold, replace EVAP canister purge outlet tube. Reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  20. Testing Fuel Vapor Control Valve Tube & Fuel Tank Disconnect fuel filler pipe hose at tank and plug hose. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system does not pass, go to next step. If system passes, replace fuel tank assembly. Reconnect all components. Perform evaporative emissions system leak test. If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  21. Testing Fuel Filler Pipe Hose Disconnect fuel filler pipe hose at fuel filler pipe and plug pipe. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, replace fuel filler pipe hose. Reconnect all components. Perform evaporative emissions system leak test. If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If system did not pass initial test, replace fuel filler pipe assembly. Perform evaporative emissions system leak test. If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  1. Evaporative Emission System Leak Test - Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, go to next step. If system does not pass, go to step 3 .
  2. Testing Evaporative Emission Running Loss System Monitor Perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If PCM DTCs P0442, P0455, P1443 or P1450 are retrieved, see DIAGNOSTIC TROUBLE CODE REFERENCE table under SYSTEM TESTS (EVAPORATIVE EMISSIONS) in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article for appropriate test procedure. If any other PCM DTCs are retrieved, diagnose affected DTC(s). See SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article.
  3. Testing For Location Of Leak Connect Evaporative Emissions System Leak Tester (134-00056) to evaporative emissions test port. Disconnect fuel vapor control valve tube from under vehicle fuel supply and vapor return tube assembly. Plug both tube open ends. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, go to next step. If pressure does not drop immediately, go to step 9 .
  4. Testing Vapor Hose From Fuel Tank To Under Vehicle Fuel Supply & Vapor Return Tube Assembly Disconnect fuel vapor return tube from under vehicle fuel supply and vapor return tube assembly. Plug fuel supply and vapor return tube assembly. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, go to next step. If pressure does not drop immediately, replace fuel vapor return hose. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  5. Testing Fuel Supply & Vapor Return Tube Assembly Disconnect fuel supply and vapor return tube assembly from canister purge outlet tube. Plug EVAP canister purge outlet tube. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, go to next step. If pressure does not drop immediately, replace fuel supply and vapor return tube assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  6. Testing Evaporative Emissions Test Port Disconnect and plug evaporative emissions test port tube from EVAP canister purge outlet tube. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace evaporative emissions test port. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, reconnect all components and go to next step.
  7. Testing EVAP Canister Purge Outlet Tube Disconnect and plug EVAP canister purge outlet tube from EVAP canister. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister purge outlet tube. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, reconnect all components and go to next step.
  8. Testing EVAP Canister Purge Valve Disconnect evaporative emission return tube from EVAP canister purge valve. Plug EVAP canister purge valve. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister purge valve. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace evaporative emissions return tube. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  9. Testing Venting Portion Of EVAP System For Blockage Reconnect all components. Move EVAP tester to fuel filler pipe. Using scan tool, close canister vent solenoid. Select OUTPUT TEST MODE, FTP and FTP V PID. Select ALL OFF mode. Press START button on scan tool to close canister vent solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). Open canister vent solenoid. If pressure drops immediately, go to step 14 . If pressure does not drop immediately, go to next step.
  10. Testing Fresh Air Vent Hose For Blockage Disconnect fresh air vent hose from fuel filler pipe inside trunk. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace fresh air vent hose. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  11. Testing Fresh Air Vent Hose At Fuel Filler Pipe For Blockage Disconnect fresh air vent hose at fuel filler pipe. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace fuel filler pipe. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  12. Testing Tank Vapor Valve Tube Assembly For Blockage Disconnect tank vapor valve tube assembly fresh air tube from canister vent solenoid vent hose. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace tank vapor valve assembly fresh air tube. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  13. Testing Canister Vent Solenoid Hose Assembly For Blockage Disconnect canister vent solenoid hose assembly. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid hose assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace canister vent solenoid. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  14. Testing EVAP Canister For Leak Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, EVAP system diagnosis is complete. Go to step 18 . If system does not pass, go to next step.
  15. Testing EVAP Canister Vent Solenoid For Leak Disconnect canister vent solenoid from EVAP canister and plug canister. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system does not pass, go to next step. If system passes, replace canister vent solenoid. Reconnect all components. Perform evaporative emissions system leak test. If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  16. Testing EVAP Canister Disconnect EVAP canister inlet elbow tube and plug tube. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system does not pass, go to next step. If system passes, replace EVAP canister. Perform evaporative emissions system leak test. If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  17. Testing EVAP Canister Inlet Elbow Tube Disconnect fuel vapor valve tube assembly from EVAP canister inlet elbow tube. Plug fuel vapor valve tube assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, replace EVAP canister inlet elbow tube. Perform evaporative emissions system leak test. If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If system does not pass, replace fuel vapor valve tube assembly. Perform evaporative emissions system leak test. If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  18. Testing Fuel Filler Pipe Grommet Reconnect all components. Move EVAP tester to fuel filler pipe. Using scan tool, close canister vent solenoid. Select OUTPUT TEST MODE, FTP and FTP V PID. Select ALL OFF mode. Press START button on scan tool to close canister vent solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops, repair fuel filler pipe as necessary. Repeat step. If pressure does not drop, perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.

UNABLE TO REFUEL VEHICLE

Note. Testing procedures are not available for Cougar, Econoline, Excursion, Expedition, Explorer, Pickup, Navigator and Windstar.

Note. After each service or repair procedure has been completed, reconnect all components and perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. Clear DTCs and repeat QUICK TEST procedures to ensure all EEC-V systems are working properly and DTCs are no longer present.

Note. Enter this test only when all steps under QUICK TEST have been successfully completed and unable to refuel condition still exists or if directed here from another test or chart.

Continental, Crown Victoria, Escape, Grand Marquis & Town Car

  1. Testing Fuel Filler Pipe & Check Valve - Remove fuel filler cap. Connect Evaporative Emissions System Leak Tester (134-00056) to fuel filler pipe. Turn ignition on. Using scan tool, close canister vent solenoid. Select OUTPUT TEST MODE, FTP and FTP V PID. Select ALL OFF mode. Press START button on scan tool to close canister vent solenoid. Access PCM PID FTP V. Pressurize system to 14 in. H 2 O (3.48 kPa). If PCM PID FTP V is 4.22-4.90 volts, go to next step. If PCM PID FTP V is not as specified, replace fuel filler pipe and check valve. Perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  2. Testing EVAP System For Restriction Attempt to pressurize system to 14 in. H 2 O (3.48 kPa). On Crown Victoria, Escape, Grand Marquis and Town Car, if system pressurizes, go to next step. On all other models, if system pressurizes, go to step 4 . On all models, if system does not pressurize, remove tester from fuel filler pipe and install fuel filler cap. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  3. Testing Canister Vent Solenoid Remote Vent Hose Assembly For Blockage Disconnect canister vent solenoid remote vent hose from in-line connector. Pressurize system to 14 in. H 2 O (3.48 kPa). If system does not pressurize, repair or replace canister vent solenoid remote vent hose. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system pressurizes, go to next step.
  4. Testing Canister Vent Hose For Blockage Remove canister vent hose from canister vent solenoid. Attempt to pressurize system to 14 in. H 2 O (3.48 kPa). If system pressurizes, go to next step. If system does not pressurize, replace canister vent hose. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  5. Testing Canister Vent Solenoid Or Dust Separator For Blockage Remove canister vent solenoid from EVAP canister. Attempt to pressurize system to 14 in. H 2 O (3.48 kPa). If system pressurizes, go to next step. If system does not pressurize, replace canister vent solenoid. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  6. Testing EVAP Canister For Blockage Remove EVAP canister tube from EVAP canister. Attempt to pressurize system to 14 in. H 2 O (3.48 kPa). If system pressurizes, go to next step. If system does not pressurize, replace EVAP canister. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  7. Testing Fuel Vapor Valve Tube Assembly For Blockage Disconnect EVAP canister tube at fuel vapor valve tube assembly. Attempt to pressurize system to 14 in. H 2 O (3.48 kPa). If system pressurizes, replace fuel vapor valve tube assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If system does not pressurize, replace EVAP canister tube. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.

Escort, Escort ZX, Focus, Ranger, Sable & Taurus (With ORVR Only)

  1. Testing Fuel Filler Pipe & Check Valve - Remove fuel filler cap. Connect Evaporative Emissions System Leak Tester (134-00056) to fuel filler pipe. Turn ignition on. Using scan tool, close canister vent solenoid. Select OUTPUT TEST MODE, FTP and FTP V PID. Select ALL OFF mode. Press START button on scan tool to close canister vent solenoid. Access PCM PID FTP V. Pressurize system to 14 in. H 2 O (3.48 kPa). If PCM PID FTP V is 4.22-4.90 volts, go to next step. If PCM PID FTP V is not as specified, replace fuel filler pipe and check valve. Perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  2. Testing EVAP System For Restriction Attempt to pressurize system to 14 in. H 2 O (3.48 kPa). If system pressurizes, go to next step. If system does not pressurize, remove tester from fuel filler pipe and install fuel filler cap. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  3. Testing Canister Vent Hose For Blockage Remove canister vent hose from canister vent solenoid. Attempt to pressurize system to 14 in. H 2 O (3.48 kPa). If system pressurizes, go to next step. If system does not pressurize, replace canister vent hose. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  4. Testing Canister Vent Solenoid For Blockage Remove canister vent solenoid from EVAP canister. Attempt to pressurize system to 14 in. H 2 O (3.48 kPa). If system pressurizes, go to next step. If system does not pressurize, replace canister vent solenoid. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  5. Testing EVAP Canister For Blockage Remove EVAP canister tube from EVAP canister. Attempt to pressurize system to 14 in. H 2 O (3.48 kPa). If system pressurizes, go to next step. If system does not pressurize, replace EVAP canister. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  6. Testing Fuel Vapor Valve Tube Assembly For Blockage Disconnect EVAP canister tube at fuel vapor valve tube assembly. Attempt to pressurize system to 14 in. H 2 O (3.48 kPa). If system pressurizes, replace fuel vapor valve tube assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If system does not pressurize, replace EVAP canister tube. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  1. Testing Fuel Tank Pressure Sensor Operation - Connect Evaporative Emissions System Leak Tester (134-00056) to fuel filler pipe. Turn ignition on. Using scan tool, close canister vent solenoid. Select OUTPUT TEST MODE, FTP and FTP V PID. Select ALL OFF mode. Press START button on scan tool to close canister vent solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). If FTP V PID is 4.22-4.90 volts, go to next step. If FTP V PID is not 4.22-4.90 volts, go to 3.
  2. Testing Vent Portion Of EVAP System Using scan tool, open canister vent solenoid. If pressure drops immediately, perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to step 5.
  3. Testing Fuel Filler Pipe Connect EVAP tester to fuel filler pipe. Disconnect fuel filler pipe from fuel tank. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, go to next step. If pressure does not drop immediately, replace fuel filler pipe. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  4. Testing Fuel Vapor Control Valve Tube Reconnect fuel filler pipe to fuel tank. Lower fuel tank about 3/4" (19 mm). Using scan tool, close canister vent solenoid. Select OUTPUT TEST MODE, FTP and FTP V PID. Select ALL OFF mode. Press START button on scan tool to close canister vent solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). If FTP V PID is 4.22-4.90 volts, fuel vapor control valve tube is pinched. Replace fuel tank assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If FTP V PID is not 4.22-4.90 volts, fuel vapor control valve tube is or fuel tank fuel vapor control valve is blocked. Replace fuel tank assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  5. Isolate Location Of Blockage Disconnect fuel vapor control valve tube from EVAP canister purge outlet tube. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, go to next step. If pressure does not drop immediately, replace fuel tank assembly. Reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  6. Testing EVAP Canister Vent Solenoid Reconnect fuel vapor control valve tube. Lower differential to gain access to canister vent solenoid. See appropriate DIFFERENTIALS article in DRIVE AXLES. Disconnect canister vent solenoid from canister vent hose. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure does not drop immediately, go to next step. If pressure drops immediately, replace canister vent solenoid. Reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  7. Testing Canister Vent Solenoid Hose Assembly Reinstall differential. Lower rear subframe to access EVAP canister and bracket assembly. Lower EVAP canister and bracket assembly. Disconnect canister vent solenoid hose from 1.0L EVAP canister. (Scheme 3) Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid hose assembly. Reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  8. Testing 1.0L EVAP Canister Disconnect fuel vapor storage EVAP canister inlet tube at 1.0L EVAP canister. (Scheme 3) Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace 1.0L EVAP canister. Reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  9. Testing Fuel Vapor Storage Canister Inlet Tube Disconnect fuel vapor storage canister inlet tube from 2.0L EVAP canister. (Scheme 3) Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace fuel vapor storage canister inlet tube. Reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  10. Testing 2.0L EVAP Canister Disconnect EVAP canister purge outlet tube at 2.0L EVAP canister. (Scheme 3) Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace 2.0L EVAP canister. Reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace EVAP canister purge outlet tube. Reconnect all components. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000). If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  1. Testing fuel Filler Pipe & Check Valve - Remove fuel filler cap. Connect Evaporative Emissions System Leak Tester (134-00056) to fuel filler pipe. Turn ignition on. Using scan tool, close canister vent solenoid. Select OUTPUT TEST MODE, FTP and FTP V PID. Select ALL OFF mode. Press START button on scan tool to close canister vent solenoid. Access PCM PID FTP V. Pressurize system to 14 in. H 2 O (3.48 kPa). If PCM PID FTP V is 4.22-4.90 volts, go to next step. If PCM PID FTP V is not as specified, go to step 10 .
  2. Testing EVAP System For Restriction Attempt to pressurize system to 14 in. H 2 O (3.48 kPa). If system pressurizes, go to next step. If system does not pressurize, perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.
  3. Testing Fresh Air Vent Hose For Blockage Disconnect fresh air vent hose from fuel filler pipe inside trunk. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace fresh air vent hose. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  4. Testing Fresh Air Vent Hose At Fuel Filler Pipe For Blockage Disconnect fresh air vent hose at fuel filler pipe. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace fuel filler pipe. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  5. Testing Tank Vapor Valve Assembly Fresh Air Tube For Blockage Disconnect tank vapor valve assembly fresh air tube from canister vent solenoid vent hose. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace tank vapor valve assembly fresh air tube. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  6. Testing Canister Vent Solenoid Hose Assembly For Blockage Disconnect canister vent solenoid hose assembly at canister vent solenoid. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid hose. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  7. Testing EVAP Canister Vent Solenoid For Blockage Disconnect canister vent solenoid from EVAP canister. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace canister vent solenoid. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  8. Testing EVAP Canister For Blockage Disconnect EVAP canister inlet elbow from EVAP canister. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  9. Testing EVAP Canister Inlet Elbow For Blockage Disconnect fuel vapor control valve tube from EVAP canister. Pressurize system to 14 in. H 2 O (3.48 kPa). If pressure drops immediately, replace EVAP canister inlet elbow. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, go to next step.
  10. Check For Pinched Fuel Vapor Control Valve Tube Lower fuel tank about 3/4" (19 mm). If not already done, close canister vent solenoid. Select OUTPUT TEST MODE, FTP and FTP V PID. Select ALL OFF mode. Press START button on scan tool to close canister vent solenoid. Access PCM PID FTP V. Pressurize system to 14 in. H 2 O (3.48 kPa). If PCM PID FTP V is 4.22-4.90 volts, replace fuel vapor control valve tube assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If PCM PID FTP V is not as specified, go to next step.
  11. Testing For Fuel Filler Tube Assembly Blockage Disconnect tank vapor recirculation tube fuel filler pipe and plug both ends. Pressurize system to 14 in. H 2 O (3.48 kPa). Remove plug from tank vapor recirculation tube. If pressure drops immediately, replace fuel vapor control valve tube assembly. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed. If pressure does not drop immediately, replace fuel filler pipe. Perform evaporative emissions system leak test. See «EVAPORATIVE EMISSIONS SYSTEM LEAK TEST»(ref-40669-S13617403242001080400000) . If system passes, perform DRIVE CYCLE PROCEDURES under ADDITIONAL SYSTEM FUNCTIONS in SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. Ensure PENDING CODE CHECK & EVAP MONITOR "BYPASS" CHECK is performed.

CANISTER VENT SOLENOID CLOSING PROCEDURE

Connect scan tool to DLC. Turn ignition on. Using scan tool, select OUTPUT TEST MODE. Select FTP and FTP V PID from PID/DATA MONITOR & RECORD menu. Select ALL OFF mode. Close canister vent solenoid by pressing START button on scan tool.

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